Whole Round Seafrozen Horse Mackerel

In West African countries (Nigeria, Ghana, Ivory Coast, Senegal), whole round horse mackerel is a staple protein because it is affordable, nutritious, and withstands long‑distance shipping. The preferred size grades are 8‑12 pieces per kilogram (100‑150g each) for family‑sized frying and 14‑20 pieces per kilogram (50‑70g each) for street food and soup bases. The sea frozen, whole round format retains the natural oils and flavor, which West African consumers prize when grilling or frying with local spices. BQF (block) is often preferred over IQF because it lowers freight cost and reduces breakage during transport in open‑deck trucks after port arrival.

Horse mackerel has moderate to high fat content (6‑13%, up to 24% in peak season). After 12 months at -18°C, unsaturated fats slowly oxidize, producing aldehydes and ketones that cause a stale, cardboard‑like, or slightly rancid smell and taste. To detect oxidation without a lab: thaw the fish and smell the belly cavity. A sweet‑sour or paint‑like odor indicates moderate oxidation. If the flesh has a yellowish discoloration or a bitter aftertaste when cooked, the fish is still safe but has lost premium quality. For best flavor, use within 10‑12 months. For longer storage, request vacuum‑packed or BQF blocks (less surface exposure) and store at -20°C or below.

or canning, thaw the fish completely in a refrigerator at 2‑4°C for 8‑12 hours. Do not thaw at room temperature. After thawing, remove the head and gut immediately, then wash the cavity with cold running water. For deep‑frying, you can cook directly from semi‑thawed state: rinse off ice glaze, pat dry, coat with flour or batter, and fry at 170‑180°C for 3‑5 minutes. If you need to remove guts before frying, thaw just enough to separate the fish (about 2‑3 hours at room temperature or 30 minutes in cold water), then make a shallow cut along the belly and scoop out the guts. Never refreeze thawed fish. For high‑volume processing (canneries), the frozen BQF block can be sawed into portions without any thawing, then the frozen pieces are headed and gutted using automated machines.